<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <script src="webjars/jquery/3.1.1/jquery.min.js"></script>
    <script src="webjars/bootstrap/3.3.5/js/bootstrap.min.js"></script>
    <link rel="stylesheet" href="webjars/bootstrap/3.3.5/css/bootstrap.min.css" />

</head>
<body>

<div class="container" style="margin: 50px auto;width:800px;">

    <div class="jumbotron">
        <h2> sb2, welcome </h2>
    </div>
</div>
</body>
</html>